Finding the Fourth Proportional to 275,494.02, 380,152.50 and 154,648.59

Step by Step Solution

1. Step 1: Write the proportion equation
   275,494.02 : 380,152.50 = 154,648.59 : x
2. Step 2: Convert to fraction form
   275,494.02/380,152.50 = 154,648.59/x
3. Step 3: Cross multiply
   275,494.02x = 380,152.50 × 154,648.59
4. Step 4: Simplify right side
   275,494.02x = 58,790,048,109.98
5. Step 5: Solve for x
   x = 58,790,048,109.98/275,494.02
6. Step 6: Final answer
   x = 213,398.64